bnx2x: Force link UP when the interface is in LOOPBACK mode

When the interface does not have carrier but when it's put into
loopback mode (for tests), it does not make sense to not have
the carrier. So force it!

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 859df751345e6f9707ca1a402d95cf9685a37419..c6da77fa9d071a38e6a009505b4ddb9a7b9ba1cd 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -4748,6 +4748,12 @@ void bnx2x_link_status_update(struct link_params *params,
        vars->link_status = REG_RD(bp, params->shmem_base +
                                   offsetof(struct shmem_region,
                                            port_mb[port].link_status));
+
+       /* Force link UP in non LOOPBACK_EXT loopback mode(s) */
+       if (bp->link_params.loopback_mode != LOOPBACK_NONE &&
+           bp->link_params.loopback_mode != LOOPBACK_EXT)
+               vars->link_status |= LINK_STATUS_LINK_UP;
+
        if (bnx2x_eee_has_cap(params))
                vars->eee_status = REG_RD(bp, params->shmem2_base +
                                          offsetof(struct shmem2_region,